From kduarte@berkeley.edu Wed Dec 04 04:05:59 1996 Path: ashpoly!cascade!mxgate!coyoacan!berkeley!kduarte From: kduarte@berkeley.edu (Karen Duarte) Newsgroups: comp.sys.m68k Subject: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Dec04.040559.5935@berkeley.edu> Date: Wed, 04 Dec 1996 04:05:59 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! By setting up Paula's audio DMA to double-buffer incoming 8-bit samples, the 68020 has plenty of cycles left for the Costas loop. Source code and executable will be released on Aminet under mus/misc/stardust_amiga.lha next week. -- === Karen Duarte === Dept of Electrical Engineering, UC Berkeley Department of EECS "5 sigma is a discovery. 7 is a question." From mfischer@purdue.edu Fri Dec 06 06:49:59 1996 Path: ashpoly!cascade!mxgate!coyoacan!purdue!mfischer From: mfischer@purdue.edu (Morag Fischer) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Dec06.064959.2998@purdue.edu> Date: Fri, 06 Dec 1996 06:49:59 GMT References: <1996Dec04.040559.5935@berkeley.edu> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Dec04.040559.5935@berkeley.edu>, kduarte@berkeley.edu (Karen Duarte) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. > When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Morag Fischer *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From mmacdonald@rwth-aachen.de Fri Dec 06 08:53:59 1996 Path: ashpoly!cascade!brgate!saturno!rwth-aachen!mmacdonald From: mmacdonald@rwth-aachen.de (Morag MacDonald) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Dec06.085359.5639@rwth-aachen.de> Date: Fri, 06 Dec 1996 08:53:59 GMT References: <1996Dec04.040559.5935@berkeley.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Dec04.040559.5935@berkeley.edu>, kduarte@berkeley.edu (Karen Duarte) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. > When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Morag MacDonald Opinions expressed are solely my own and not those of RWTH Aachen Informatik. ------------------------------------------------------------ From mhernandez@stanford.edu Sat Dec 07 22:42:59 1996 Path: ashpoly!cascade!transat!ukc!fennimore!stanford!mhernandez From: mhernandez@stanford.edu (Min-jun Hernández) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Dec07.224259.8357@stanford.edu> Date: Sat, 07 Dec 1996 22:42:59 GMT References: <1996Dec04.040559.5935@berkeley.edu> <1996Dec06.064959.2998@purdue.edu> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Dec06.064959.2998@purdue.edu>, mfischer@purdue.edu (Morag Fischer) writes: > Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Min-jun Hernández *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From mcampbell@cmu.edu Sun Dec 08 08:24:59 1996 Path: ashpoly!cascade!transat!ukc!fennimore!cmu!mcampbell From: mcampbell@cmu.edu (Mei Campbell) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Dec08.082459.4316@cmu.edu> Date: Sun, 08 Dec 1996 08:24:59 GMT References: <1996Dec04.040559.5935@berkeley.edu> <1996Dec06.085359.5639@rwth-aachen.de> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996Dec06.085359.5639@rwth-aachen.de>, mmacdonald@rwth-aachen.de (Morag MacDonald) writes: > Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Mei Campbell | mcampbell@cmu.edu PGP Key fingerprint: 209B 8934 ABFC 5EA4 "Keep the channels open."